Ik War Op Blauw Gestart

Recording by Jan Biggel.

Recording identifiers

ISRC
NLE872307201
CopyrightID (CopyrightChains transaction hash)
0x72783fabd88f5f7686c7748f4e7862be51ae4a08af70a16e1d8aca4e1355bd5b
Copyright registration time
2026-06-09T11:42:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:b01cc39800e64dada450b518616b6eb88b88c762eca91fac72ae6ce6924f8add

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.